MySQL 5.6 & 5.7最优配置文件模板 作者: 王十三 时间: 2018-01-03 分类: 服务器运维 评论 > http://www.innomysql.net/article/21730.html 整理了一份最新基于MySQL 5.6和5.7的配置文件模板， 基本上可以说覆盖90%的调优选项，用户只需根据自己的服务器配置稍作修改即可，如InnoDB缓冲池的大小、IO能力（innodb_buffer_pool_size，innodb_io_capacity)。特别注意，这份配置文件不用修改，可以直接运行在MySQL5.6和5.7的版本下， 这里使用了小小的技巧，具体可看配置文件。如果配置参数存在问题，也可以及时反馈，我们一起成长。 触发做这件事情的原因是大部分网络上的MySQL配置文件都非常非常古老，大多都是基于MySQL 5.1的版本，这导致了绝大部分MySQL并没有运行在最优的环境，从而导致一些错误的使用，亦或是灾难性事故的发生，比如数据丢失，主从数据不一致等。而这些问题早在5.6版本及以后的版本中得到了解决。 最后，抛弃你那所谓的、陈旧的、错误的MySQL配置文件，面向一个崭新的高性能、高可靠、高可扩展MySQL时代，你要做的就是下载这份配置文件并用于你的生产环境。配置如下： [client] user=davi password=88888888 [mysqld] ########basic settings######## server-id = 11 port = 3306 user = mysql bind_address = 10.166.224.32 autocommit = 0 character_set_server=utf8mb4 skip_name_resolve = 1 max_connections = 800 max_connect_errors = 1000 datadir = /data/mysql_data transaction_isolation = READ-COMMITTED explicit_defaults_for_timestamp = 1 join_buffer_size = 134217728 tmp_table_size = 67108864 tmpdir = /tmp max_allowed_packet = 16777216 sql_mode = "STRICT_TRANS_TABLES,NO_ENGINE_SUBSTITUTION,NO_ZERO_DATE,NO_ZERO_IN_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER" interactive_timeout = 1800 wait_timeout = 1800 read_buffer_size = 16777216 read_rnd_buffer_size = 33554432 sort_buffer_size = 33554432 ########log settings######## log_error = error.log slow_query_log = 1 slow_query_log_file = slow.log log_queries_not_using_indexes = 1 log_slow_admin_statements = 1 log_slow_slave_statements = 1 log_throttle_queries_not_using_indexes = 10 expire_logs_days = 90 long_query_time = 2 min_examined_row_limit = 100 ########replication settings######## master_info_repository = TABLE relay_log_info_repository = TABLE log_bin = bin.log sync_binlog = 1 gtid_mode = on enforce_gtid_consistency = 1 log_slave_updates binlog_format = row relay_log = relay.log relay_log_recovery = 1 binlog_gtid_simple_recovery = 1 slave_skip_errors = ddl_exist_errors ########innodb settings######## innodb_page_size = 8192 innodb_buffer_pool_size = 6G innodb_buffer_pool_instances = 8 innodb_buffer_pool_load_at_startup = 1 innodb_buffer_pool_dump_at_shutdown = 1 innodb_lru_scan_depth = 2000 innodb_lock_wait_timeout = 5 innodb_io_capacity = 4000 innodb_io_capacity_max = 8000 innodb_flush_method = O_DIRECT innodb_file_format = Barracuda innodb_file_format_max = Barracuda innodb_log_group_home_dir = /redolog/ innodb_undo_directory = /undolog/ innodb_undo_logs = 128 innodb_undo_tablespaces = 3 innodb_flush_neighbors = 1 innodb_log_file_size = 4G innodb_log_buffer_size = 16777216 innodb_purge_threads = 4 innodb_large_prefix = 1 innodb_thread_concurrency = 64 innodb_print_all_deadlocks = 1 innodb_strict_mode = 1 innodb_sort_buffer_size = 67108864 ########semi sync replication settings######## plugin_dir=/usr/local/mysql/lib/plugin plugin_load = "rpl_semi_sync_master=semisync_master.so;rpl_semi_sync_slave=semisync_slave.so" loose_rpl_semi_sync_master_enabled = 1 loose_rpl_semi_sync_slave_enabled = 1 loose_rpl_semi_sync_master_timeout = 5000 [mysqld-5.7] innodb_buffer_pool_dump_pct = 40 innodb_page_cleaners = 4 innodb_undo_log_truncate = 1 innodb_max_undo_log_size = 2G innodb_purge_rseg_truncate_frequency = 128 binlog_gtid_simple_recovery=1 log_timestamps=system transaction_write_set_extraction=MURMUR32 show_compatibility_56=on
开始运行MYSQL 5.7 作者: 王十三 时间: 2018-01-03 分类: 服务器运维 评论 参考文档 > http://dev.mysql.com/doc/refman/5.7/en/json-search-functions.html 编辑my.cnf [mysqld] 下面增加 > sql_mode='ONLY_FULL_GROUP_BY,NO_AUTO_VALUE_ON_ZERO,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION,PIPES_AS_CONCAT,ANSI_QUOTES' 运行 MYSQL ： > /etc/init.d/mysqld start > > mysql -uroot -p > JSON查询方法： > JSON_EXTRACT(json_doc, path[, path] ... 普通查询 mysql> SELECT JSON_EXTRACT('{"a":1,"b":0}','$.a') AS json ; +------+ | json | +------+ | 1 | +------+ 1 row in set (0.00 sec) 数组查询 mysql> SELECT JSON_EXTRACT('[10,20,30]','$[*]') AS json ; +--------------+ | json | +--------------+ | [10, 20, 30] | +--------------+ 1 row in set (0.00 sec) 查询数组 键值 内容 mysql> SELECT JSON_EXTRACT('{"a":1,"b":0,"c":[10,20,30]}','$.c[1]') AS json ; +------+ | json | +------+ | 20 | +------+ 1 row in set (0.00 sec) > JSON_SEARCH(json_doc, one_or_all, search_str[, escape_char[, path] ...]) > > one_or_all : one or all > > PS：适用于搜索数组 搜索数组 SELECT JSON_SEARCH('["1","0",["10","20","30"]]','one','1') AS json ; 结合JSON_EXTRACT SELECT JSON_SEARCH(JSON_EXTRACT('{"a":1,"b":0,"c":["10","20","30"]}','$.c'),'all','10') AS json ;